Liquid-fuel burner



NW.. '4W WSG.. J. W. NEWBERY LIQUID FUEL BURNER Filed Dec. 1.3, 1929 7/L 7 i i f' c il`ll Q oiils 1 JPII Patented Nov. 4, 1930 JOHN W; NEWBERY,OF ROGKVILLE CENTER, NEW YORK LIQUID-FU'EL BUB'NER Application filedDecember 13, 1929. Serial 170. 413,748.

My present invention relates to liquid fuel burners and more.particularly to the type of burner shown and describe'd in United StatesPatent No. 1,660,848, issued to me February 28, 1928, which type isparticularly adapted and intended for use in the fire-box of a range.

It has for its eneral object the provision of means ada t to cause thecombustion of the gaseous uel to be more completely localized and theheat therefrom better concentrated upon elements provided for itsstorage, whereby the loss of temperature by convection is reduced with a'corresponding conservation of heat for useful radiation.

I With the above object in view, to ether with other minor objectshereinafter re 'erred to my invention consists in the provision in aburner structure including a pair.` of horizontal baflie plates at itstop, from which depend heat storage elements, of a plurality of Verticalbaflies radially' disposed' between the rims of said horizontal plates,whereby the passa e of gaseous currents from the combustion ues aredeflected and diverted and their 'upward passage and ultimate escapeflue-ward are delaye By thus delaying the fiow of combustion gases andinsurin their directional flow, their contact with t ie heat retaininelements is prolonged eflectively and the e ciency of their indirectapplication to' oven-heatmg is increased., By horizontally and also`Vertically bafliing the ascending currents, eddy currents are avoidedin great measure, whereby more even and Constant application of heat isobtainable therefrom in those parts of the burner intended to be heatedthereby.

In the preferred structural er'nbodiment of my invention illustrated inthe accornpanying drawings, Figure 1 is a perspective view of a twinburner, parts of one burner being removed to show those underlying themFigure 2 is a view in Vertical mid-section through a single burner; andFigure 3 is a plan view of the burner tops.

In the several Vlews, the numerals indicate like parts. 1 is the base.2, 3 and 4 are circular troughs therein. 5, 6,- 7 'and are perforatedtubular elements, concentrlcally nested, seated in recesses upon thelnner faces of the sides of the troughs. 9, 10 and 11 are guides forlocating the tubular elements to their seats. 12 is an annularhorizontal baffie platehaving flue-holes 13 therethrough, downwardlytapered bars 14 dependlng therefrom and the radially arranged Verticalbaflles 15. This annular baflle seats upon the tops of the tubularelements 6, 7, With its bars 14 pro] ecting downwardly therebetween. 16is a horizontal baflie Whose diameter is substantially that of thebafile 12.

Baflie 16 comprises a central disk 17, adapted to seat upon'the top ofthe tubular element 8 and close same, and a skeleton frame 1 8connectingthe central disk with the outer r1m of the plate, the skeletonconstruction atfording fiue openings 19, 20, between the upwardlyprojecting, radially arranged, Vertical bafles 21. The baflle 16 has thetapered bars 22 depending from it, which project downwardly between 'theadjacent walls of the tubular elements 7 and 8.

The base 1 is adjustably supported by a telescopic column 23 upon thetripod 24. Each set of troughs has an oil supply connection 25. i

The method of operation includes the supply of air through the openbottom of the central tube 8 and through its perforated walls to thecombustion Chamber oVer trou h 4; and through the perforated wall of tuular element 7 to the combustion Chamber over trough 3, which Chamber isalso supplied with air through the perforated wall of ,tubular element 6which separates it from the combustion Chamber next it and over trough2, the outer combustion Chamber over trough 2 being supplied by airthrough the perforations in wall 5. The burning' vapor ascending fromtrough 4 heats the bars 22; the vapor from trough 3 heats the bars 14;and the vapor from trough 2 scrves to preheat the air caused to be drawnthrough the other chambers by the suction of the air ascending in-'thecentral tube, which passes out throu h its wall 8A and between thehorizontal ba es 12 and 16 and between the Vertical baflles 15.

The upward draft caused by the outer tubularelement 5, flues 13, 19 and20, also .serves to supplement the suction of air across utility of thisburner is as 'a heating unit' in a range, where it is desirable that themaximum quantity of heat units be' concentrated adjcent the oven'whenthe latter'is to be use My improved burner heightens this efiectV inmarked degree in comparsion with the burner of said patent due to theprovision of the radially disposed Vertical baflies intermediate thepair of horiontal baflies therein provided, and of the similarlydisposed Vertical baflies upon the top of the upper hori-.

zon tal baflle, with which the plates of the range or the bottom of acooking utensil thereon co-operate to furnish additional directionalChannels, 'so that the combined efl'ect is to cause the flow of thecombustion gases through more protracted channels and thereby delayappreciably the rate of passage of the gases from the burner to thechimney.

'Having thus described my invention and the principle of its operation,I claim:

1. A li uid fuel'burner comprising a plurality of oraminous concentrictubular elements vertically disposed and spaced apart; a base providedwith fuel troughs therein, said troughs bein located beneath the spacesbetween said tu ular elements, and constituting therewith a plurality ofcombustion chambers; a baflie plate extending above and closing thecentral tubular member and above the combustion chambers; a secondbaflie plate extending above and closingv one of said combustionchambers; and aseries of vertically disposed bafiles extending radiallyintermediate said baflie-plates.

2. A li uid fuel burner comprising a plurality of oraminous tubularelements Vertically disposed and concentrically spaced apart; a base4common thereto and rov1ded with circular fuel troughs therein, t eopposite walls of a pair of tubular elements forming a combustionchamber ove'i` each trough; a horizontal baflle extending over onecombustion chamber; a second horizontal baflle extical baflles upon theupper surface of said plate; a second plate seated on the top of the.central tubular element and extending later- 'llar elements, whereby acombustion chamber 1s provided above Ieach trough; an annular plateseated on the tops of two of the tubular elements and forming the top ofa combustion chamber between said pair oftubular elements; a pluralityof radially disposed vertical baflies upon the upper surface of saidplate; a second plate seated-on the top of the central tubular elementand extending laterally above the first plate; a plurality of flues insaid first plate and a plurality of flues in said second plate; and aplurality of radially disposed vertical baflies upon the upper face ofsaid second plate. w

5. A liquid fuel burner comprising a lurality of foraminous tubularelements; a ase common thereto and adapted to seat said elementsconcentrically; concentric fuel trou hs in said base disposed beneathadj acent tu ular elements, whereby a combustion chamber is providedabove each trough; an annular plate seated on the tops of two of thetubular .elements and forming the top of a combustion chamber betweensaid pair of tubular elements; a plurality of tapered bars projectingdownwardly from said plate into said chamber; a plurality of radiallydisposed Vertical baflles upon the upper surface of said plate; a secondplate seated on the top of the central tubular element and extendinglaterally above the first plate; a plurality of tapered bars dependingfrom sald seco nd plate into another combustion chamber; a plurality offlues in said first plate and a plurality of flues in said second plate;and a plurality of radially disposed Vertical baflies upon the upperface of said second plate.

- JOHN W. NEWBERY.

tending over an adjacent combustion chamher; and a plurality of radiallydis osed vertical baflles extending between said orizontal baflies.

3. A li uid fuel burner comprising a plurality of oraminous tubularelements; a ase common thereto and adapted to seat saidpelementsconcentrically; concentric fuel trou hs in said base disposed beneathadjacent'tu ular elements, whereby a combustion chamber is providedabove each trough; an annular plate seated on the tops of two of thetubular elements and formin the top of a combustion chamber between saidpair of tubular elements; a plurality of radially disposed ver-

